Preparing The Coax Cables - iDirect Evolution 8000 Series Installation And Safety Manual

Preparing the Coax Cables

4.5 Preparing the Coax Cables
Use high quality coaxial cable to connect the e8350 Satellite Router to the outdoor
equipment. iDirect recommends that you use a solid copper center conductor, quadruple
shield, coaxial cable with a minimum of 60% + 40% braid and double foil shield to connect the
e8350 Satellite Router to the outdoor equipment, such as:
• RG-6: 0.04 inch (1 mm), solid bare copper center conductor (CommScope 5782)
• RG-11: 0.064 inch (1.6 mm), solid bare copper center conductor (5902)
The center conductor must be straight and extend 1/8 inch (3.2 mm) beyond the end of the
F-connector, and the connector should be securely crimped to the cable.
Note: iDirect does not recommend using RG-59 with solid bare copper center
conductor unless the IFL length is less than 120 feet (37 m). If lower RF
insertion loss is required due to the distance between the e8350 Satellite
Router and the outdoor equipment, then RG-11 or other 75-ohm types of coax
can be used.
If you use different types of coaxial cable other than the recommended quadruple shield RG-
6 or RG-11, the following problems can occur:
• Co-channel Interference. If signals at the same frequency are carried on long, parallel
runs of coaxial cable (for example, in cable trays, or riser), interference can occur
between the signals. Higher quality cable helps to prevent this with better shielding. Co-
channel interference causes degradation in higher packet rate loss.
• Damage to the e8350 Satellite Router connectors. The F-Type connectors are designed
for RG-6 or RG-11 cable and connectors. Larger cables can damage the connectors.
• Excessive DC Resistance. Results in excessive voltage drop across the IFL cable.
Excessive voltage drop can cause the voltage level at the BUC to be too low to operate
properly.
26 iDirect Evolution 8000 Series Satellite Router Installation and Safety Manual